do constructors throw exceptions C++ code example
Example 1: c++ throw exception
#include <stdexcept>
int compare( int a, int b ) {
if ( a < 0 || b < 0 ) {
throw std::invalid_argument( "received negative value" );
}
}
Example 2: c++ throw exception
#include <iostream>
#include <exception>
using namespace std;
class myexception: public exception
{
virtual const char* what() const throw()
{
return "My exception happened";
}
} myex;
int main () {
try
{
throw myex;
}
catch (exception& e)
{
cout << e.what() << '\n';
}
return 0;
}